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https://issues.apache.org/jira/browse/SOLR-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071162#comment-13071162
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Ryan McKinley commented on SOLR-2242:
-------------------------------------
bq. Perhaps we should return the maximum and sum of all shard counts? That way,
assuming the client knew how many shards exist, they could handle most
scenarios.
Once we change the output format, we should be able to add a few thigns to the
output. Perhaps something like
{code:xml}
<lst name="text">
<int name="numTerms">385</int>
<int name="distribMaxTerms">385</int>
<int name="distribSumTerms">845</int>
<lst name="counts">
...
{code}
> Get distinct count of names for a facet field
> ---------------------------------------------
>
> Key: SOLR-2242
> URL: https://issues.apache.org/jira/browse/SOLR-2242
> Project: Solr
> Issue Type: New Feature
> Components: Response Writers
> Affects Versions: 4.0
> Reporter: Bill Bell
> Assignee: Simon Willnauer
> Priority: Minor
> Fix For: 4.0
>
> Attachments: NumFacetTermsFacetsTest.java,
> SOLR-2242-notworkingtest.patch, SOLR-2242.patch, SOLR-2242.patch,
> SOLR-2242.shard.patch, SOLR-2242.shard.patch,
> SOLR-2242.shard.withtests.patch, SOLR-2242.solr3.1.patch,
> SOLR.2242.solr3.1.patch, SOLR.2242.v2.patch
>
>
> When returning facet.field=<name of field> you will get a list of matches for
> distinct values. This is normal behavior. This patch tells you how many
> distinct values you have (# of rows). Use with limit=-1 and mincount=1.
> The feature is called "namedistinct". Here is an example:
> http://localhost:8983/solr/select?shards=localhost:8983/solr,localhost:7574/solr&indent=true&q=*:*&facet=true&facet.mincount=1&facet.numFacetTerms=2&facet.limit=-1&facet.field=price
> http://localhost:8983/solr/select?shards=localhost:8983/solr,localhost:7574/solr&indent=true&q=*:*&facet=true&facet.mincount=1&facet.numFacetTerms=0&facet.limit=-1&facet.field=price
> http://localhost:8983/solr/select?shards=localhost:8983/solr,localhost:7574/solr&indent=true&q=*:*&facet=true&facet.mincount=1&facet.numFacetTerms=1&facet.limit=-1&facet.field=price
> This currently only works on facet.field.
> {code}
> <lst name="facet_fields">
> <lst name="price">
> <int name="numFacetTerms">14</int>
> <int name="0.0">3</int><int name="11.5">1</int><int
> name="19.95">1</int><int name="74.99">1</int><int name="92.0">1</int><int
> name="179.99">1</int><int name="185.0">1</int><int name="279.95">1</int><int
> name="329.95">1</int><int name="350.0">1</int><int name="399.0">1</int><int
> name="479.95">1</int><int name="649.99">1</int><int name="2199.0">1</int>
> </lst>
> </lst>
> {code}
> Several people use this to get the group.field count (the # of groups).
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